Retro PC Gaming from the Late 80's, Early 1990's

Here go some games that I recently rediscovered. Does anyone on here know if 5.25 and 3.5 floppy disks lose their magnetic storage capability over the years? Is it possible to transfer data from a floppy disk to a CD? I've heard mixed answers from people who use more modern computing equipment. I figured that most of the computer geeks around town had a working 5.25 & 3.5 drive on hand, no computer stores or the few privately owned stores that I visited have that shit anymore.

I received a recent email from an enthusiast stating that I could download these old games from a website called, www.myabandonware.com and he states that I'll need to download a version of DOSBOX that is easy to use with a Windows interface. It would be nice if I could get these games put on a CD to be used with modern hardware and software or if I could find a downloadable Super Mario Bros. Print World if my disks no longer work.